Download or read book Elevator Service Classic Reprint written by Reginald Pelham Bolton and published by Forgotten Books. This book was released on 2017-10-29 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Elevator Service This travel has outgrown the extreme capacity of some of the best plants of elevators, and has indicated that, in spite Of great power and rapidity of operation, the passenger-carrying capac ity of an elevator actually decreases after a certain limiting point is reached, a condition which affects all types of elevators, and is the inevitable result of the combination of a certain num ber Of passengers with the number of floors to and from which they are carried. The important relation of elevator service to the success of all classes of buildings, renders it very desirable to determine the cause and character of this limitation, and to ascertain there from the best service which any elevator, or any combination of elevators, will afford, establishing an average or rated duty which may be adopted as a basis for the service to be expected from an elevator, or from any combination of units in an eleva tor service. The absence Of such a uniform definition Of the work of an elevator, has resulted in a confusing variety Of proportions, not only in the speed of the machines and in the size of the cars, but in the number of elevators of equal character applied to similar conditions of service. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Passenger Elevators Classic Reprint written by Thomas E. Brown and published by Forgotten Books. This book was released on 2017-10-24 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Passenger Elevators The machine was controlled by a brake acting on the guide strips. This elevator was not provided with any automatic con trolling devices, could move at great speed, and the passengers were entirely at the mercy of the operator. It soon fell into disfavor, and the field was left to the slower steam elevator. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The Elevator written by W. D. Howells and published by Forgotten Books. This book was released on 2015-08-04 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Elevator: A Farce That was just what I was going to ask. She's never late; and the children are quite heart-broken. They had counted upon seeing her, and talking Christmas a little before they were put to bed. Roberts Very singular her not com ing! Is she going to begin standing upon ceremony with us, and not come till the hour? About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The Elevator Constructor Vol 15 written by International Union of Ele Constructors and published by Forgotten Books. This book was released on 2017-10-12 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Elevator Constructor, Vol. 15: January, 1918 Our Republic, our people, are at war. Whatever individuals may have thought. Upon the European situation before the Congress of the United States declared war' against the im perial German and Austrian Govern ments, that must now be laid aside. The Congress and the President, under the authority of the Constitution of our Republic, have irrevocably de cided the matter. War means victory for our cause or danger to the very existence of our nation. With our nation at stake, individuals can not interpose opposition to the war - a war declared by the will of the nation's representatives. Under the exigencies of war, Opposi tion to the war declared by constituted authority becomes treason. It is a time that requires serious consideration of words and actions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Tests of Elevators written by Harry Franklin Glair and published by Forgotten Books. This book was released on 2017-10-29 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Tests of Elevators: Thesis The Warner elevator is of the key and push button control type and is located in Lincoln Hall at the University of Illinois. When a passenger wishes to use the car he places his key in the wall switch, which is located at the side of the door. The elevator immediately comes to the floor where the passenger is located. The doors to the elevator shaft can only be Opened when the car is at that floor. The doors are all arranged with springs so that they close whenever released. When the doors at any floor are Open the car will not operate. As soon as the elevator reaches his floor the passenger enters, and the door closes behind him. The passenger then places his key in the switch on the wall of the car corresponding to the floor to which he desires to go. If the passenger makes a mistake or desires to change his destination, he pushes a stop button on the switchboard. He then places his key in the floor switch corresponding to his destination. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Elevators written by John H. Jallings and published by Forgotten Books. This book was released on 2017-11-22 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Elevators: A Practical Treatise on the Development and Design of Hand, Belt, Steam, Hydraulic, and Electric Elevators Crossing stops within a foot or so of the proper place, we call them skilled drivers; when we watch the operators of our swift passenger elevators make stop after stop in rapid succession within an inch of the proper level, we realize not only the skill displayed but also the refinement of the operator's control over the car. Modern elevator service has improved so steadily with the de mands made upon it that we hardly realize the perfection which it has reached. From sidewalk lift of one story to the trying service of the Woolworth Building, every requirement either of load or of speed is met with an ease which is truly astonishing. Q The history of the development of the elevator is practically the history of the mechanical development of the age. Starting with the crude hand elevator which was confined entirely to the handling of freight, one feature after another was added either as the necessities of the service demanded it or as the mechanical improvement of our machines and mechanicians would allow it. The motive power received its share of attention - hand, steam, hydraulic, and electric motive power being perfected in succession. The two latter alone survived in rendering the difficult passenger service of the modern skyscraper, and in late years the popular favor has been almost wholly transferred to the electric type of elevator. But developments did not stop with the motive power for the complications of service demanded perfect control methods, automatic safety devices, proper car suspensions, and ease and smoothness of running. In the hydraulic type, the pilot valve, accumulator, and the high and low-pressure systems made this type of service extremely reliable. Wonderful progress has been also made in the electric type by the improvements in motor design, both direct and alternating; the perfection of the full magnet control; and the development of the traction type for high buildings. The push-button system of control, by means of. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Hydraulic Elevators Classic Reprint written by William Baxter Jr and published by Forgotten Books. This book was released on 2017-07-25 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Hydraulic Elevators Vertical-cylinder elevators are generally geared from two to one, up to six to one, ratios Of three and four to one being, probably, the most common. Horizontal cylinders are seldom made of lower gear than six to one, and are frequently made Of as high gear as twelve to one. Fig. I shows, in perspective, the general arrangement Of a vertical-cylinder elevator geared four to one. The general arrangement of a modern vertical-cylinder, hydraulic elevator geared two. To one is shown in Fig. 2, p. 6. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Hydraulic Elevators written by William Baxter and published by Forgotten Books. This book was released on 2017-10-16 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Hydraulic Elevators: Their Design, Construction, Operation, Care and Management The elevators so far considered are of the type known as low pressure, and are actuated with water pressures ranging between about 40 and 175 pounds per square inch. In the early days of hydraulic elevators the pressure was obtained by pumping water into a tank located upon the roof of the building, and as a column of water of one square inch cross section weighs about of a pound per foot of hight, the pressure seldom exceeded 50 pounds, and in many cases was as low as 30 pounds per square inch. With the advent of high buildings greater car speed was demanded, and this necessitated increasing the power of the elevator machine. This increase could be obtained in two ways, one by making the cylinder of larger diameter, and the other by increasing the pressure. As space in the buildings was valuable, the latter plan was adopted, and in order to obtain the increased pressure; a closed pressure tank was substituted for the open roof tank. The pressure tank had been used years before the time of high-power elevators, in buildings that were so low that the pressure obtained from an open tank on the roof was not high enough to keep the diameter of the cylinder within reasonable bounds; but from this time all elevators installed in high buildings were operated with water drawn from pressure tanks. The general introduction of the pressure tank resulted in an increase in the working pressure to from 75 to 100 pounds. By this increase the size of the cylinder, the tanks and the piping can be considerably reduced, with a corresponding saving in space and material. With the continued increase in the hight of buildings the pressure has been increased, so that at the present time it is common practice to use pressures up to 180 pounds and even a little higher. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 23 written by and published by Forgotten Books. This book was released on 2017-11-19 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 23: September 15, 1904 Therefore, when this plant is completed, which will be in time for this year's crop, the Canadian Northern Railway will be able to take care of all damaged grain. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book Efficiency Test of Mabbs Electric Elevators at the Chicago Board of Trade written by Philip Eickenberg and published by Forgotten Books. This book was released on 2016-11-04 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Efficiency Test of Mabbs Electric Elevators at the Chicago Board of Trade: A Thesis The installation of the mabbs elevators in the Chicago Board of Trade consists of five elevators, one of which was put in several years previous to the installation of the other four. The first mentioned elevator differs from the other four in its Endeof control and will not be considered in this exposition. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 43 written by and published by Forgotten Books. This book was released on 2017-11-18 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 43: February 15, 1925 Our qualified engineers will be glad. To give you first hand data on your requirements. Remember, Webster offers -you that fine balance of reliable service and satisfaction. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The Design of Walls Bins and Grain Elevators Classic Reprint written by Milo S. Ketchum and published by Forgotten Books. This book was released on 2017-11-21 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Design of Walls, Bins and Grain Elevators Reinforced concrete is now very extensively used in the construe tion of retaining walls, bins, and grain elevators, and it has therefore appeared advisable to give a discussion of the theory of reinforced con crete and to develop the formulas necessary 'for use in design. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 14 written by and published by Forgotten Books. This book was released on 2018-02-18 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 14: A Monthly Journal Devoted to the Elevator and Grain Interests; October 15, 1895 Do not entrust the building of your elevator to an irresponsible country barn builder, or you may have to pay for the construction of two elevators. Many of them fall in a heap as soon as they are loaded with grain. There are a number of reliable elevator build ers who have made a study of the proper construction and arrangement of grain elevators, so there is no ex cuse for patronizing the Cheap John builders. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 25 written by and published by Forgotten Books. This book was released on 2017-11-09 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 25: September 15, 1906 Poor quality of the Russian macaroni wheat has solved the marketing problem of the Northwest growers of that variety in the United States and Canada, in large part at least. Earlier in August the question of how to dispose of the crop of 35, bushels in the United States alone was bothering the Northwest trade. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 14 written by and published by Forgotten Books. This book was released on 2018-04-29 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 14: A Monthly Journal Devoted to the Elevator and Grain Interests; February 15, 1896 Our large Eureka Clippers and Scourers were also the pioneers of their class, and the first ones placed in Elevators are still running successfully to-day. A large number of Elevator Men and Grain Dealers, after trying various other machines in the market, have found themselves compelled to put in a eureka clipper IN order to. DO their work satisfactorily. PR ices AN D TE rms. - Therefore, if properly, 'whether you require a Separator, Scourer or r particulars. You will. Be satisfied with our terms. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 46 written by A. J. Mitchell and published by Forgotten Books. This book was released on 2017-11-19 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 46: August 15, 1927 The smallest motor used in the regular operation of unloading, storing, and reloading grain is of 10 horsepower. These are on the mechanical shovels. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Elevator and Grain Trade Vol 23 written by and published by Forgotten Books. This book was released on 2017-11-19 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Elevator and Grain Trade, Vol. 23: November 15, 1914 The elevator and mill proper has a floor area of only 24 x 36 feet and is 107 feet high measured from the basement floor to the peak of roof. The base ment floor is one foot above the extreme high water level and 18 feet above the rock level. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.